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→Disabilities defined
It is estimated that approximately 1 in 5 people have a disability. Disabilities are generally classified into 4 areas.
[[File:a11y-disability.png|thumb|none|500px|The four disability classifications(Visual, Hearing, Movement, Cognitive)]]
===Visual===
This classification includes people with low vision and the completely blind as well as people with color blindness or other visual impairments such as vision loss due to injury, cataracts and other factors.
===Movement===
This classification includes people with Cerebral Palsy, Quadriplegia and a range of restricted movement and may include people with arthritis or other conditions or injuries.
===Cognitive===
This classification includes people with developmental delays, dyslexia, autism, ADHD, Down syndrome and may be expanded to include Non-native speakers and sometimes the elderly.